Water-hoist



5 (No Model.) I

A. NIEDRINGHAUS. WATER HOIST.

No. 413,627. ,Padzented Oct. 22, 1-889.

- Invenior:

6212 anZz'erJZMn'g-Zm QM UNITED STATES PATENT OFFICE.

ALEXANDERNIEDRINGHAUS, OF ST. LOUIS, MISSOURI.

'WATER-HOIST.

SPECIFICATION forming part of Letters Patent No. 413,627, dated October22, 1889.

Application filed March 11, 1889. Serial No. 302,810. (No model-) To allwhom it may concern.-

Be it known that I, ALEXANDER NIEDRING- HAUS, of St. Louis, Missouri,have madea new and useful Improvement in Water-Hoists, of which thefollowing is a full, clear, and exact description.

The subject-matter of this improvement is closely related to aconstruction described in a pending application of mine for LettersPatent for an improvement in water-hoists, in that the elevation of thewater is effected by means of a direct lift applied to a piston orplunger working in a cylinder submerged or partially submerged in thewater to be elevated.

The improvement consists substantially as is hereinafter described andclaimed, reference being had to the annexed drawings, making part ofthis specification, in which Figure 1 is a vertical section of theimproved water-hoist; Fig. 2, a horizontal section on the line 2 2 ofFig. 1; Fig. 3, a horizontal section on the line 3 3 of Fig. 1; Fig. 4,

' a horizontal section on the line 4 4 of Fig. 1.

The same letters of reference denote the same parts.

A represents the cylinder; B, the piston Working in the cylinder; E, thepartition or head at the upper end of the cylinder; F, the piston-rod;G, the rope attached to the piston-rod; H, the tube attached to thecylinder and used to deliver the water from the cylinder, and I thelever for raising the rope, piston-rod, and piston, all substantially asshown in the drawings.

Water-hoists of the kind under consideration are oftener employed inraising water from deep placessuch as mines-and I have ascertained thatit is desirable to divide the lift into two lifts, and to so arrangethem as to cause the weight of one of them to balance the weight of theother. To this end the tube I-I, Fig. l, is extended upward but a partof the way to the level at which the water is ultimately discharged, andat its upper end the tube H is made toconnect with a reservoir J, intowhich the water raised through the tube I-I flows.

A desirable arrangement of the reservoir is shown in Fig. 1, thereservoir being an extension of the tube H, substantially as shown inFig. 1'. The partition K, having the upwardly-opening valves It, servesto separate the tube H from the reservoir J. At jj are vents throughwhich the air can pass out from and into the reservoir as the water isdelivered into and withdrawn from the reservoir. By means of the passageL,having the checkvalve 1 seating toward the reservoir, provision ismade for. delivering the water from the reservoir into a second cylinderM analogous to the cylinder A, and arranged at the level of thereservoir J, and having a piston N working upward and downward thereinand attached to a rod 0. The piston N has upwardly-opening valves n ntherein, and the rod 0 extends upward through the upper cylinder-head m,and downward through the lower cylinder-head m. A rope P serves toconnect the rod 0 with the arm 2 of the lever I, and a rope P connectsthe rod 0 with the arm q of a lever Q, which is pivoted at q to anyfixed bearing g below the level of the hoist, arid Whose arm g isconnected with a rope g, which leads to the piston B in the cylinder A.

The operation is as follows: By turning the lever I upon its pivot t" todepress its arm 11 and to raise its arm t, Fig. 1, the rope G is drawnupward and the piston B in consequence is lifted toward the upper end ofthe cylinder A. The connection 9 causes the arm g of the lever Q to beraised and the arm q to be depressed. This movement of the lever Qcauses the rope P, the rod 0, the piston N, and the rope P to be drawndownward. As the piston B rises its valves seat, and as the piston Nfalls its valves unseat. The water above the piston B is lifted into thetube H and ultimately into the reservoir J, and as the Water is thuslifted the valves in the head E and partition K unseat. The water findsits way from the reservoir J into the passage L, and thence past thevalve Z into the cylinder M, in which the piston N is falling as thepiston B is rising. On turning the leverI in the opposite direction todepress its arm 1' and raise its arm 2', the parts P, O, N, and P aredrawn upward, the lever Q is turned upon its pivot to depress its arm (1and the parts 9, B, F, and G are, in consequence, drawn downward. Thevalves in the piston N are now seated, and the water above the piston islifted and discharged from the cylinder M. The

water leaving the cylinder may pass into an independent tube and thencebe discharged at the top of the hoist, or it may, as shown in Fig. 1, bedelivered past a check-valve R, which seats toward the cylinder M into atube S, which rests upon the reservoir J, substantially as shown. Thewater after reaching the tube S is discharged at the top of the hoist.The lever I is then again reversed and the Water raised in the cylinderA and delivered into the reservoir J, and so on with every vibration ofthe lever I lifting the water partof the distance to the top of thehoist.

. The arrows in the drawings indicate the general course which the watertakes. in its upward movement, and they do not have any relation to thepositions in which the valves are shown.

I claim The combination, with the lower cylinder A, the tube H,vertically above the said cylinder and separated therefrom by the valveE, the reservoir-partition J, vertically above said tube and separatedtherefrom by the valved partition K, the upper cylinder M, connected tothe reservoir by the valved tube L above the partition K, and the tubeS, vertically above the reservoir, separated therefrom by a partition,and communicating with the cylinder M through a valved tube, of the twopistons, the double-armed pivoted levers, and the connections from thearms of said levers to the pistons and piston-rods, substantially asspecified.

Witness my hand this 4th day of March, 1889.

ALEXANDER NIEDRINGIIAUS.

\Vitnesses:

C. D. Moonv, I. W. A. SANFORD.

